tamirsuliman-weathermap-panel (the plugin actually installed, not the
allamiro fork the schema research was done against) requires node.anchors
-- a numLinks/numFilledLinks tally per anchor position -- and expects
link.sides.*.anchor as the plugin's numeric TS enum value (Center=0,
Top=1, Bottom=2, Left=3, Right=4), not an anchor name string. Omitting
anchors entirely (per the "safe to omit, auto-defaulted" schema-research
note, which turns out to be fork-specific) crashed the panel on load with
"TypeError: undefined is not an object (evaluating 'i.anchors[0]')".
Enum values reverse-engineered from the installed plugin's module.js.
Refs #48